US4598130AExpiredUtility

Blends of a polyarylate and a poly(ester carbonate)

Assignee: UNION CARBIDE CORPPriority: Feb 18, 1983Filed: May 10, 1985Granted: Jul 1, 1986

Est. expiryFeb 18, 2003(expired)· nominal 20-yr term from priority

Inventors:Lloyd M. Robeson Donald M. Papuga

C08L 67/03C08L 69/005

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Abstract

Described herein are blends comprising a polyarylate and a poly(ester carbonate). These blends have improved light transmission, lower haze, and good mechanical properties.

Claims

exact text as granted — not AI-modified

What is claimed is: 
     
       1. A blend consisting essentially of from about 30 to about 70 weight percent of a polyarylate prepared from bisphenol-A and a mixture of terephthalic and isophthalic acids and from about 70 to about 30 weight percent of a random poly(ester carbonate) of the following formula: ##STR6## wherein a is from about 0.1 to about 0.9 and b is from about 0.9 to about 0.1. 
     
     
       2. A blend as defined in claim 1 wherein a and b are 0.5.

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